Results 81 to 90 of about 114,060 (217)

Statistical Scale Analyses of a Diurnal Periodicity in Auroral Kilometric Radiation, Observed by Wind/WAVES

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract The Earth's strongest natural radio emission is Auroral Kilometric Radiation (AKR), which is correlated with auroral intensity, and is a barometer for space weather. AKR is generated by the electron cyclotron maser instability, with sources on auroral field lines. Previous work on AKR and radio emissions from other planets (or stars) points to
Alexandra Ruth Fogg, S. Wu, C. M. Jackman, S. J. Walker, M. J. Rutala, C. K. Louis, S. M. Ivanov, L. Lamy, J. E. Waters, D. K. Whiter   +9 more
wiley   +1 more source

Saturn's Auroral Dusk Sector Magnetosphere‐Ionosphere Coupling During Cassini's Proximal Orbits

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract The final twenty‐two low‐altitude passes of the Cassini spacecraft enabled the determination of Saturn's field‐aligned currents (FACs) from magnetometer measurements at lower altitudes than previously achieved. We investigate southern dusk‐side FAC behavior with four objectives: how in situ MAG measurements compare to the highly variable ...
S. W. Farr, S. V. Badman, L. C. Ray, G. Provan, J. Kinrade, L. S. Clare   +5 more
wiley   +1 more source

Dynamics of Alfvén waves in the night-side ionospheric Alfvén resonator at mid-latitudes [PDF]

, 2005
International audienceA numerical solution of the problem on dynamics of shear-mode Alfvén waves in the ionospheric Alfvén resonator (IAR) region at middle latitudes at nighttime is presented for a case when a source emits a single pulse of duration ...
Grebnev, I. A., V. V. Alpatov, M. G. Deminov, D. S. Faermark, Kosch, M. J., M. J. Kosch, Faermark, D. S., I. A. Grebnev, Deminov, M. G., Alpatov, V. V.   +9 more
core   +2 more sources

Scientometric portrait of Ram Gopal Rastogi [PDF]

, 2003
Publication productivity of Indian scientist (R.G. Rastogi) has been documented. Scientometric analysis of 312 papers by Ram Gopal Rastogi published during 1954 to 1992 in various domains: (a) Luni -solar activity and quiet -time E & F- region (57); (b ...
Munnolli, Satish S, Kalyane, V L, Munnolli, S. S., Kalyane, V. L.   +3 more
core   +1 more source

Variation of Venusian Gravity Wave Absolute Momentum Fluxes and Drag as Retrieved From the Akatsuki Mission

Journal of Geophysical Research: Planets, Volume 131, Issue 9, September 2026.
Abstract Using temperature retrievals from Akatsuki radio occultation measurements, we characterize gravity wave activity as a function of vertical wavenumber and altitude. For the first time, we estimate the absolute horizontal momentum fluxes and the magnitude of the gravity wave drag (i.e., wave acceleration), assuming a horizontal wavelength of 300 
Erdal Yiğit, Emilia Sloan
wiley   +1 more source

Development and Validation of the Whole Atmosphere Community Climate Model With Thermosphere and Ionosphere Extension (WACCM‐X 2.0)

Journal of Advances in Modeling Earth Systems, 2018
Key developments have been made to the NCAR Whole Atmosphere Community Climate Model with thermosphere and ionosphere extension (WACCM‐X). Among them, the most important are the self‐consistent solution of global electrodynamics, and transport of O+ in ...
Han‐Li Liu, Charles G. Bardeen, Benjamin T. Foster, Peter Lauritzen, Jing Liu, Gang Lu, Daniel R. Marsh, Astrid Maute, Joseph M. McInerney, Nicholas M. Pedatella, Liying Qian, Arthur D. Richmond, Raymond G. Roble, Stanley C. Solomon, Francis M. Vitt, Wenbin Wang   +15 more
doaj   +1 more source

Michigan Geospace Model With Ensemble Forecasting and Particle Filtering: Modeling the May 2024 Extreme Storm

Space Weather, Volume 24, Issue 9, September 2026.
Abstract This paper introduces an updated version of the University of Michigan Geospace model. The Geospace model has been used for operational forecasting at the Space Weather Modeling Center of the National Oceanic and Atmospheric Agency since 2016 with regular updates. The current operational version, Geospace V2, was launched in 2021 and is driven
Gábor Tóth, Pauline Dredger, Tuija Pulkkinen   +2 more
wiley   +1 more source

Cross‐Correlations of Solar Wind Parameters Using Monitoring Spacecraft

Space Weather, Volume 24, Issue 9, September 2026.
Abstract Space weather predictive modeling currently utilizes real‐time data from the spacecraft ACE and DSCOVR, with SOLAR‐1 and IMAP recently online. This study assesses whether DSCOVR solar wind plasma and interplanetary magnetic field (IMF) data exhibit large‐scale discrepancies from the corresponding ACE data, and if so, whether these ...
P. H. Reiff, S. Chepuri, J. Liebenthal, S. Petrinec, S. Schwartz, C. T. Russell   +5 more
wiley   +1 more source

Alfvén wave boundary condition for responsive magnetosphere-ionosphere coupling [PDF]

, 2014
A.J.B.R. thanks STFC for present support through consolidated grant ST/K000993/1 and gratefully acknowledges a Royal Commission for the Exhibition of 1851 Research Fellowship that also assisted this work.The solution of electric fields and currents in a ...
Wright, A.N., Wright, Andrew N., Andrew N. Wright, Russell, A.J.B., Russell, Alexander J.B., Alexander J. B. Russell   +5 more
core   +1 more source

Ionospheric response to the equatorial stratospheric wind

Geofísica Internacional, 2004
Chen (1992) reports an association between the variance of the F2 layer critical frequency, foF2var, and the quasi-biennial oscillation, QBO, of the monthly mean zonal wind in the equatorial stratosphere (MMZW) at 40 mb, with data of March and September at Okinawa (26°N, 128°E). We search for such an association in other locations.
Zossi, Marta María, Ortiz de Adler, Nieves del Carmen, Elias, Ana Georgina   +2 more
openaire   +4 more sources